Напишите следующие предложения во множественном числе. 1. It is a very difficult question to answer. 2. Is this your

1. These are very difficult questions to answer. 2. Are  these your contracts? 3. What are your chiefs\' names? 4. There were delegations at the fair. 5. They are economists. 6. Are these members of foreign delegations? 7. These are difficult words to write. 8. Those are our partners\' documents. 9. This equipment is very expensive. 10. The business letters were on the tables.